September weather forecastAgios Efstratios, Greece
September
Weather in September
September, the first month of the autumn in Agios Efstratios, is still a warm month, with an average temperature ranging between min 21.9°C (71.4°F) and max 23.8°C (74.8°F).Temperature
In the transition to September, Agios Efstratios observes a minor drop in the average high-temperature, shifting from a moderately hot 26.9°C (80.4°F) in August to a still warm 23.8°C (74.8°F). A modest nighttime temperature average of 21.9°C (71.4°F) characterizes September in Agios Efstratios.Humidity
August and September, with an average relative humidity of 69%, are the least humid months in Agios Efstratios.Rainfall
In September, in Agios Efstratios, the rain falls for 7.6 days. Throughout September, 26mm (1.02") of precipitation is accumulated. Throughout the year, there are 118.6 rainfall days, and 419mm (16.5") of precipitation is accumulated.Snowfall
In Agios Efstratios, snow does not fall in March through December.Sea temperature
In September, the average sea temperature in Agios Efstratios is 23.4°C (74.1°F).Note: If cold is not your friend, swimming at 23.4°C (74.1°F) might be daunting. But the right mix of sunshine, wind, and external temperature can make a difference. Although wetsuits are not essential, they can enhance the swimming experience.
Daylight
The average length of the day in September is 12h and 27min.On the first day of the month, sunrise is at 06:48 and sunset at 19:51. On the last day of September, in Agios Efstratios, sunrise is at 07:15 and sunset at 19:04 EEST.
Sunshine
In Agios Efstratios, the average sunshine in September is 10.5h.UV index
The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The daily high UV index of 6 in September translates into this advice:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Stay sun-safe with clothing that is both closely woven and worn loosely. Warning! Reflective surfaces like sand and water amplify the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Agios Efstratios, Greece
- Average high temperature in September: 23.8°C
The warmest month (with the highest average high temperature) is August (26.9°C).
The month with the lowest average high temperature is January (11.4°C).
- Average low temperature in September: 21.9°C
The month with the highest average low temperature is August (24.7°C).
The coldest month (with the lowest average low temperature) is January (9.3°C).
Average pressure in September
Agios Efstratios, Greece
- Average pressure in September: 1014.5mbar
The month with the highest atmospheric pressure is December (1018.7mbar).
The month with the lowest atmospheric pressure is July (1010.9mbar).
Average wind speed in September
Agios Efstratios, Greece
- Average wind speed in September: 23.6km/h
The windiest month (with the highest average wind speed) is February (29.9km/h).
The calmest month (with the lowest average wind speed) is June (17.9km/h).
Average humidity in September
Agios Efstratios, Greece
- Average humidity in September: 69%
The month with the highest relative humidity is November (75%).
The months with the lowest relative humidity are August and September (69%).
Average rainfall in September
Agios Efstratios, Greece
- Average rainfall in September: 26mm
The wettest month (with the highest rainfall) is January (67mm).
The driest month (with the least rainfall) is August (4mm).
Average rainfall days in September
Agios Efstratios, Greece
- Average rainfall days in September: 7.6 days
The month with the highest number of rainy days is January (15.2 days).
The month with the least rainy days is August (1.8 days).
Average snowfall in September
Agios Efstratios, Greece
- Average snowfall in September: 0mm
The months with the highest snowfall are January and February (1mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Agios Efstratios, Greece
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).
Average sea temperature in September
Agios Efstratios, Greece
- Average sea temperature in September: 23.4°C
The best month for swimming (with the highest average sea temperature) is August (25.7°C).
The coldest month (with the lowest average sea temperature) is March (14.1°C).
Average daylight in September /
Average sunshine in September
Agios Efstratios, Greece
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 10h and 30min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in September
Agios Efstratios, Greece
- Average sunshine days in September: 20.9 days
The month with the most sunshine days is August (28 days).
The month with the least sunshine days is February (12.6 days).
Average UV index in September
Agios Efstratios, Greece
- Average UV index in September: 6
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in September
Agios Efstratios, Greece
- Average cloud cover in September: 15
The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 6).
Average visibility in September
Agios Efstratios, Greece
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).





